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What solid residue will turn from green to black if heated?
Copper(II) nitrate will turn from green to black when heated due to the decomposition of the compound. The green color is due to the presence of copper ions, which decompose into copper oxide when heated, resulting in the color change to black.
Do iron tablets change urine colour?
Yes, iron tablets can cause urine to turn a greenish or yellow color. This is due to the way the body processes and eliminates excess iron. If you are concerned about changes in urine color after taking iron tablets, it is best to consult with a healthcare provider.
What does slate turn into if heated and squashed?
If slate is sufficiently heated and compressed it becomes phyllite.
What does slate turn into if its heated and squashed?
phyllite
Does 100g of iron turn into 100g of iron oxide?
No, when 100g of iron reacts with oxygen to form iron oxide, the resulting compound will have a different mass than the initial iron due to the addition of oxygen atoms. The mass of the iron oxide formed will be greater than 100g, as the oxygen atoms combine with the iron atoms to form the compound.
How can you extract iron ore from iron pyrite?
It's possible to do so (if you mean extract iron from iron pyrite) , but because pyrite is exothermic, it creates a hazard in mines. Also, it is much more economical to extract iron from other minerals. Pyrite is also geologically unstable, and will eventually turn into sulfurous minerals and actually viable iron ores, so it is best left for future mines. Pyrite is really only worth it for making sulfuric acid or jewelry.
When copper is heated which colour will it turn to?
It turns greenish.
What is the colour of chloroform when heated?
Chloroform is a colorless liquid at room temperature. When heated, it may turn to a colorless gas.
What solid residue will turn from green to black if heated?
Copper(II) nitrate will turn from green to black when heated due to the decomposition of the compound. The green color is due to the presence of copper ions, which decompose into copper oxide when heated, resulting in the color change to black.
Are there any materials that turn magnetic when heated?
pure iron when heated above 2000 C under damp air or steam to form a magnetic oxide
Why does heated iron turn yellow and the red when cooling?
Heated iron turns yellow due to oxidation at high temperatures, forming iron oxide (FeO). As the iron cools, the oxide layer thickens, shifting the color to red as a different form of iron oxide (Fe2O3) forms. This change in color is due to the different crystal structures and compositions of the iron oxides.
What dark crystals turn into purple vapour when they are heated?
Amethyst crystals are known to turn into purple vapour when they are heated. This phenomena is due to the presence of iron impurities in the crystal structure of amethyst that react to heat by creating the purple coloring.
When iron is heated will it turn into liquid?
All materials have a certain point in which they will 'melt' and turn into a liquid, so yes :)
What metal turns red?
When heated, metals like iron, steel, and titanium can turn red due to oxidation. This process forms a layer of iron oxide on the surface, giving it a reddish color.
Why does porcelain turn brown when heated?
Porcelain contains impurities such as iron oxide that can cause it to turn brown when exposed to high temperatures. These impurities react with the oxygen in the atmosphere during firing, leading to the discoloration.
What colour do you turn when you die and what colour is it?
Blue...
What colour does hydrous copper sulphate turn when heated?
Hydrous copper sulphate, when heated, turns into anhydrous copper sulphate and changes its color from blue to white. The blue color comes from the water molecules bound to the copper sulphate crystals, and when heated, these water molecules are removed, resulting in a color change.
